#!/bin/csh
echo -n "Please enter your age "
set age = $<

if ( $age > 12 && $age < 19 ) then
	echo A teenager            # What if you enter 20?
else if ( $age > 20 && $age < 30) then
	echo A young adult
else if ( $age >= 30 ) then    # What if the user enters 125?
	echo Moving on in years
else
	echo "Invalid input"
endif
